package anims;
import java.awt.BorderLayout;
import java.awt.Canvas;
import java.awt.Color;
import java.awt.Container;
import java.awt.Cursor;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GridLayout;
import java.awt.Rectangle;
import java.awt.Shape;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.MouseMotionAdapter;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.geom.Ellipse2D;
import java.awt.geom.Rectangle2D;

import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.border.TitledBorder;

public class xxEllipse extends JFrame {
	DrawingCanvas canvas;

	JLabel location;

	public xxEllipse() {
		super();
		Container container = getContentPane();

		canvas = new DrawingCanvas();
		container.add(canvas);

		JPanel panel = new JPanel();
		panel.setLayout(new GridLayout(1, 2));
		panel.add(new JLabel("x,y: ", JLabel.RIGHT));
		location = new JLabel("");
		panel.add(location);

		container.add(panel, BorderLayout.SOUTH);

		addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				System.exit(0);
			}
		});
		setSize(600, 300);
		setVisible(true);
	}

	public static void main(String arg[]) {
		new xxEllipse();
	}

	class DrawingCanvas extends JPanel {
		double x, y, w, h;

		int x1, y1, x2, y2;

		Ellipse2D ellipse;

		Ellipse2D selectedShape;

		Rectangle2D boundingRec;

		Cursor curCursor;

		public DrawingCanvas() {
			x = 20;
			y = 20;
			w = 100;
			h = 75;
			setBackground(Color.white);
			addMouseListener(new MyMouseListener());
			addMouseMotionListener(new MyMouseMotionListener());
		}

		public void paint(Graphics g) {
			Graphics2D g2D = (Graphics2D) g;
			ellipse = new Ellipse2D.Double(x, y, w, h);
			g2D.draw(ellipse);
			if (boundingRec != null) {
				drawHighlightSquares(g2D, boundingRec);
			}
			if (curCursor != null)
				setCursor(curCursor);
		}

		public void drawHighlightSquares(Graphics2D g2D, Rectangle2D r) {
			double x = r.getX();
			double y = r.getY();
			double w = r.getWidth();
			double h = r.getHeight();
			g2D.setColor(Color.black);

			g2D.fill(new Rectangle.Double(x - 3.0, y - 3.0, 6.0, 6.0));
			g2D.fill(new Rectangle.Double(x + w * 0.5 - 3.0, y - 3.0, 6.0, 6.0));
			g2D.fill(new Rectangle.Double(x + w - 3.0, y - 3.0, 6.0, 6.0));
			g2D.fill(new Rectangle.Double(x - 3.0, y + h * 0.5 - 3.0, 6.0, 6.0));
			g2D.fill(new Rectangle.Double(x + w - 3.0, y + h * 0.5 - 3.0, 6.0, 6.0));
			g2D.fill(new Rectangle.Double(x - 3.0, y + h - 3.0, 6.0, 6.0));
			g2D.fill(new Rectangle.Double(x + w * 0.5 - 3.0, y + h - 3.0, 6.0, 6.0));
			g2D.fill(new Rectangle.Double(x + w - 3.0, y + h - 3.0, 6.0, 6.0));
		}

		class MyMouseListener extends MouseAdapter {
			public void mousePressed(MouseEvent e) {
				if (ellipse.contains(e.getX(), e.getY())) {
					selectedShape = ellipse;
					if (boundingRec != null)
						boundingRec = ellipse.getBounds2D();
					displayParameters(selectedShape);
				} else {
					boundingRec = null;
					location.setText("");
				}
				canvas.repaint();
				x1 = e.getX();
				y1 = e.getY();
			}

			public void mouseReleased(MouseEvent e) {
				if (ellipse.contains(e.getX(), e.getY())) {
					boundingRec = ellipse.getBounds2D();
					selectedShape = ellipse;

					displayParameters(selectedShape);
				}

				canvas.repaint();
			}

			public void mouseClicked(MouseEvent e) {
				if (ellipse.contains(e.getX(), e.getY())) {
					selectedShape = ellipse;
					boundingRec = ellipse.getBounds2D();

					displayParameters(selectedShape);
				} else {
					if (boundingRec != null)
						boundingRec = null;
					location.setText("");
				}
				canvas.repaint();
			}
		}

		class MyMouseMotionListener extends MouseMotionAdapter {
			public void mouseDragged(MouseEvent e) {
				if (ellipse.contains(e.getX(), e.getY())) {
					boundingRec = null;
					selectedShape = ellipse;
					x2 = e.getX();
					y2 = e.getY();
					x = x + x2 - x1;
					y = y + y2 - y1;
					x1 = x2;
					y1 = y2;
				}
				if (selectedShape != null)
					displayParameters(selectedShape);
				canvas.repaint();
			}

			public void mouseMoved(MouseEvent e) {
				if (ellipse != null) {
					if (ellipse.contains(e.getX(), e.getY())) {
						curCursor = Cursor.getPredefinedCursor(Cursor.HAND_CURSOR);
					} else {
						curCursor = Cursor.getDefaultCursor();
					}
				}
				canvas.repaint();
			}
		}

		public void displayParameters(Shape shape) {
			double x = selectedShape.getX();
			double y = selectedShape.getY();
			double w = selectedShape.getWidth();
			double h = selectedShape.getHeight();
			String locString = "(" + Double.toString(x) + "," + Double.toString(y) + ")";
			String sizeString = "(" + Double.toString(w) + "," + Double.toString(h) + ")";
			location.setText(locString);
		}
	}
}
